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  <section id="cmp0160">
<span id="policy:CMP0160"></span><h1>CMP0160<a class="headerlink" href="#cmp0160" title="Link to this heading">¶</a></h1>
<div class="versionadded">
<p><span class="versionmodified added">Added in version 3.29.</span></p>
</div>
<p>More read-only target properties now error when trying to set them.</p>
<p>The <span class="target" id="index-0-command:set_target_properties"></span><a class="reference internal" href="../command/set_target_properties.html#command:set_target_properties" title="set_target_properties"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">set_target_properties()</span></code></a> and <span class="target" id="index-0-command:set_property"></span><a class="reference internal" href="../command/set_property.html#command:set_property" title="set_property"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">set_property()</span></code></a> commands
are intended to error out on all read-only properties. However, CMake 3.28 and
below only did this for the following properties:</p>
<ul class="simple">
<li><p><span class="target" id="index-0-prop_tgt:HEADER_SETS"></span><a class="reference internal" href="../prop_tgt/HEADER_SETS.html#prop_tgt:HEADER_SETS" title="HEADER_SETS"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">HEADER_SETS</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:INTERFACE_HEADER_SETS"></span><a class="reference internal" href="../prop_tgt/INTERFACE_HEADER_SETS.html#prop_tgt:INTERFACE_HEADER_SETS" title="INTERFACE_HEADER_SETS"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">INTERFACE_HEADER_SETS</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:IMPORTED_GLOBAL"></span><a class="reference internal" href="../prop_tgt/IMPORTED_GLOBAL.html#prop_tgt:IMPORTED_GLOBAL" title="IMPORTED_GLOBAL"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">IMPORTED_GLOBAL</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:MANUALLY_ADDED_DEPENDENCIES"></span><a class="reference internal" href="../prop_tgt/MANUALLY_ADDED_DEPENDENCIES.html#prop_tgt:MANUALLY_ADDED_DEPENDENCIES" title="MANUALLY_ADDED_DEPENDENCIES"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">MANUALLY_ADDED_DEPENDENCIES</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:NAME"></span><a class="reference internal" href="../prop_tgt/NAME.html#prop_tgt:NAME" title="NAME"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">NAME</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:TYPE"></span><a class="reference internal" href="../prop_tgt/TYPE.html#prop_tgt:TYPE" title="TYPE"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">TYPE</span></code></a></p></li>
</ul>
<p>This policy enforces the read-only nature of the following target properties:</p>
<ul class="simple">
<li><p><span class="target" id="index-0-prop_tgt:ALIAS_GLOBAL"></span><a class="reference internal" href="../prop_tgt/ALIAS_GLOBAL.html#prop_tgt:ALIAS_GLOBAL" title="ALIAS_GLOBAL"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">ALIAS_GLOBAL</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:BINARY_DIR"></span><a class="reference internal" href="../prop_tgt/BINARY_DIR.html#prop_tgt:BINARY_DIR" title="BINARY_DIR"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">BINARY_DIR</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:CXX_MODULE_SETS"></span><a class="reference internal" href="../prop_tgt/CXX_MODULE_SETS.html#prop_tgt:CXX_MODULE_SETS" title="CXX_MODULE_SETS"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">CXX_MODULE_SETS</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:IMPORTED"></span><a class="reference internal" href="../prop_tgt/IMPORTED.html#prop_tgt:IMPORTED" title="IMPORTED"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">IMPORTED</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:INTERFACE_CXX_MODULE_SETS"></span><a class="reference internal" href="../prop_tgt/INTERFACE_CXX_MODULE_SETS.html#prop_tgt:INTERFACE_CXX_MODULE_SETS" title="INTERFACE_CXX_MODULE_SETS"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">INTERFACE_CXX_MODULE_SETS</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:LOCATION"></span><a class="reference internal" href="../prop_tgt/LOCATION.html#prop_tgt:LOCATION" title="LOCATION"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">LOCATION</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:LOCATION_&lt;CONFIG&gt;"></span><a class="reference internal" href="../prop_tgt/LOCATION_CONFIG.html#prop_tgt:LOCATION_&lt;CONFIG&gt;" title="LOCATION_&lt;CONFIG&gt;"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">LOCATION_&lt;CONFIG&gt;</span></code></a></p></li>
<li><p><span class="target" id="index-0-prop_tgt:SOURCE_DIR"></span><a class="reference internal" href="../prop_tgt/SOURCE_DIR.html#prop_tgt:SOURCE_DIR" title="SOURCE_DIR"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">SOURCE_DIR</span></code></a></p></li>
</ul>
<p>The <code class="docutils literal notranslate"><span class="pre">OLD</span></code> behavior for this policy is to only error out for the properties
<span class="target" id="index-1-prop_tgt:MANUALLY_ADDED_DEPENDENCIES"></span><a class="reference internal" href="../prop_tgt/MANUALLY_ADDED_DEPENDENCIES.html#prop_tgt:MANUALLY_ADDED_DEPENDENCIES" title="MANUALLY_ADDED_DEPENDENCIES"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">MANUALLY_ADDED_DEPENDENCIES</span></code></a>, <span class="target" id="index-1-prop_tgt:NAME"></span><a class="reference internal" href="../prop_tgt/NAME.html#prop_tgt:NAME" title="NAME"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">NAME</span></code></a>, and <span class="target" id="index-1-prop_tgt:TYPE"></span><a class="reference internal" href="../prop_tgt/TYPE.html#prop_tgt:TYPE" title="TYPE"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">TYPE</span></code></a>.
The <code class="docutils literal notranslate"><span class="pre">NEW</span></code> behavior for this policy is to error out on all target properties
that are documented as read-only.</p>
<p>This policy was introduced in CMake version 3.29.
It may be set by <span class="target" id="index-0-command:cmake_policy"></span><a class="reference internal" href="../command/cmake_policy.html#command:cmake_policy" title="cmake_policy"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">cmake_policy()</span></code></a> or <span class="target" id="index-0-command:cmake_minimum_required"></span><a class="reference internal" href="../command/cmake_minimum_required.html#command:cmake_minimum_required" title="cmake_minimum_required"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">cmake_minimum_required()</span></code></a>.
If it is not set, CMake warns, and uses <code class="docutils literal notranslate"><span class="pre">OLD</span></code> behavior.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>The <code class="docutils literal notranslate"><span class="pre">OLD</span></code> behavior of a policy is
<span class="target" id="index-0-manual:cmake-policies(7)"></span><a class="reference internal" href="../manual/cmake-policies.7.html#manual:cmake-policies(7)" title="cmake-policies(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">deprecated</span> <span class="pre">by</span> <span class="pre">definition</span></code></a>
and may be removed in a future version of CMake.</p>
</div>
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